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Route overview: Seattle to Boston (BOS) flight deals

Seattle → Boston

Jun 16, 2027 · choose your return date

SEA → BOS1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

June 2027

Jun 16, 2027 · One wayAmerican AirlinesUp to 1 stop each way$235.00 Jun 16, 2027 · One wayAlaska AirlinesNonstop$270.00 Jun 16, 2027 – Jun 17, 2027 · 1 nightAmerican Airlines / Alaska AirlinesUp to 1 stop each way$492.50 Jun 16, 2027 – Jun 17, 2027 · 1 nightAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 18, 2027 · 2 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 18, 2027 · 2 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 19, 2027 · 3 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 19, 2027 · 3 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 20, 2027 · 4 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 20, 2027 · 4 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 21, 2027 · 5 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 21, 2027 · 5 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 22, 2027 · 6 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 22, 2027 · 6 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 23, 2027 · 7 nightsAmerican Airlines / Alaska AirlinesUp to 1 stop each way$492.50 Jun 16, 2027 – Jun 23, 2027 · 7 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 24, 2027 · 8 nightsAmerican Airlines / Alaska AirlinesUp to 1 stop each way$492.50 Jun 16, 2027 – Jun 24, 2027 · 8 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 25, 2027 · 9 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 25, 2027 · 9 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 26, 2027 · 10 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 26, 2027 · 10 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 27, 2027 · 11 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 27, 2027 · 11 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 28, 2027 · 12 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 28, 2027 · 12 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 29, 2027 · 13 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$502.50 Jun 16, 2027 – Jun 29, 2027 · 13 nightsAlaska AirlinesNonstop$525.00 Jun 16, 2027 – Jun 30, 2027 · 14 nightsAmerican Airlines / Alaska AirlinesUp to 1 stop each way$492.50 Jun 16, 2027 – Jun 30, 2027 · 14 nightsAlaska AirlinesNonstop$525.00

Flights for your trip

  1. Wed, Jun 16 · One way

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS

    One-way total · 1 adult · Taxes included

  2. Wed, Jun 16 · One way

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS

    One-way total · 1 adult · Taxes included

  3. Wed, Jun 16 – Thu, Jun 17

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Alaska Airlines
    6:22 pmBOS
    6h 38m
    Nonstop
    10:00 pmSEA

    Round-trip total · 1 adult · Taxes included

  4. Wed, Jun 16 – Thu, Jun 17

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  5. Wed, Jun 16 – Fri, Jun 18

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    7:50 amBOS
    6h 31m
    Nonstop
    11:21 amSEA

    Round-trip total · 1 adult · Taxes included

  6. Wed, Jun 16 – Fri, Jun 18

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  7. Wed, Jun 16 – Sat, Jun 19

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    10:40 amBOS
    6h 23m
    Nonstop
    2:03 pmSEA

    Round-trip total · 1 adult · Taxes included

  8. Wed, Jun 16 – Sat, Jun 19

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    7:00 amBOS
    6h 38m
    Nonstop
    10:38 amSEA

    Round-trip total · 1 adult · Taxes included

  9. Wed, Jun 16 – Sun, Jun 20

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    7:26 pmBOS
    6h 29m
    Nonstop
    10:55 pmSEA

    Round-trip total · 1 adult · Taxes included

  10. Wed, Jun 16 – Sun, Jun 20

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  11. Wed, Jun 16 – Tue, Jun 22

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    3:45 pmBOS
    6h 21m
    Nonstop
    7:06 pmSEA

    Round-trip total · 1 adult · Taxes included

  12. Wed, Jun 16 – Tue, Jun 22

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:03 amBOS
    6h 24m
    Nonstop
    12:27 pmSEA

    Round-trip total · 1 adult · Taxes included

  13. Wed, Jun 16 – Wed, Jun 23

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Alaska Airlines
    5:44 pmBOS
    6h 24m
    Nonstop
    9:08 pmSEA

    Round-trip total · 1 adult · Taxes included

  14. Wed, Jun 16 – Wed, Jun 23

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    5:44 pmBOS
    6h 24m
    Nonstop
    9:08 pmSEA

    Round-trip total · 1 adult · Taxes included

  15. Wed, Jun 16 – Thu, Jun 24

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  16. Wed, Jun 16 – Thu, Jun 24

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  17. Wed, Jun 16 – Sat, Jun 26

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    10:40 amBOS
    6h 23m
    Nonstop
    2:03 pmSEA

    Round-trip total · 1 adult · Taxes included

  18. Wed, Jun 16 – Sat, Jun 26

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    7:00 amBOS
    6h 38m
    Nonstop
    10:38 amSEA

    Round-trip total · 1 adult · Taxes included

  19. Wed, Jun 16 – Sun, Jun 27

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    7:26 pmBOS
    6h 29m
    Nonstop
    10:55 pmSEA

    Round-trip total · 1 adult · Taxes included

  20. Wed, Jun 16 – Sun, Jun 27

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  21. Wed, Jun 16 – Mon, Jun 28

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Delta Air Lines
    7:50 amBOS
    6h 31m
    Nonstop
    11:21 amSEA

    Round-trip total · 1 adult · Taxes included

  22. Wed, Jun 16 – Mon, Jun 28

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    9:00 amBOS
    6h 37m
    Nonstop
    12:37 pmSEA

    Round-trip total · 1 adult · Taxes included

  23. Wed, Jun 16 – Wed, Jun 30

    American Airlines
    11:59 pmSEA
    7h 33m
    ORD · 1h 4m
    10:32 am+1BOS
    Alaska Airlines
    5:44 pmBOS
    6h 24m
    Nonstop
    9:08 pmSEA

    Round-trip total · 1 adult · Taxes included

  24. Wed, Jun 16 – Wed, Jun 30

    Alaska Airlines
    3:40 pmSEA
    5h 19m
    Nonstop
    11:59 pmBOS
    Alaska Airlines
    5:44 pmBOS
    6h 24m
    Nonstop
    9:08 pmSEA

    Round-trip total · 1 adult · Taxes included

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1 of 24

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SEA ⇄ BOS

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Explore this route

All dates for this routeJun 15, 2027 · Return optionsJun 17, 2027 · Return optionsHotels in Boston with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-06-16 · one wayAlaska AirlinesAS460Axel-exclusive $270.002026-10-29T00:39:14Z
2027-06-16 · one wayAmerican AirlinesAA2379 + AA2089Axel-exclusive $235.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-17Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-17American Airlines / Alaska AirlinesAA2379 + AA2089 / AS257Axel-exclusive $492.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-18Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-18American Airlines / Delta Air LinesAA2379 + AA2089 / DL384Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-19Alaska AirlinesAS460 / AS459Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-19American Airlines / Delta Air LinesAA2379 + AA2089 / DL332Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-20Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-20American Airlines / Delta Air LinesAA2379 + AA2089 / DL797Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-21Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-21American Airlines / Delta Air LinesAA2379 + AA2089 / DL384Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-22Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-22American Airlines / Delta Air LinesAA2379 + AA2089 / DL2889Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-23Alaska AirlinesAS460 / AS257Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-23American Airlines / Alaska AirlinesAA2379 + AA2089 / AS257Axel-exclusive $492.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-24Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-24American Airlines / Alaska AirlinesAA2379 + AA2089 / AS215Axel-exclusive $492.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-25Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-25American Airlines / Delta Air LinesAA2379 + AA2089 / DL384Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-26Alaska AirlinesAS460 / AS459Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-26American Airlines / Delta Air LinesAA2379 + AA2089 / DL332Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-27Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-27American Airlines / Delta Air LinesAA2379 + AA2089 / DL797Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-28Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-28American Airlines / Delta Air LinesAA2379 + AA2089 / DL384Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-29Alaska AirlinesAS460 / AS215Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-29American Airlines / Delta Air LinesAA2379 + AA2089 / DL2889Axel-exclusive $502.502026-10-29T00:39:14Z
2027-06-16 → 2027-06-30Alaska AirlinesAS460 / AS257Axel-exclusive $525.002026-10-29T00:39:14Z
2027-06-16 → 2027-06-30American Airlines / Alaska AirlinesAA2379 + AA2089 / AS257Axel-exclusive $492.502026-10-29T00:39:14Z

Route overview: Seattle to Boston (BOS) flight deals

2027-06-16 · one way · Axel-exclusive $235.00

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.

2027-06-16 · one way · Axel-exclusive $270.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.

2027-06-16 → 2027-06-17 · Axel-exclusive $492.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Alaska Airlines AS257: BOS 2027-06-17 18:22:00 → SEA 2027-06-17 22:00:00; nonstop; 398 minutes. Local airport times.

2027-06-16 → 2027-06-17 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-17 09:00:00 → SEA 2027-06-17 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-18 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL384: BOS 2027-06-18 07:50:00 → SEA 2027-06-18 11:21:00; nonstop; 391 minutes. Local airport times.

2027-06-16 → 2027-06-18 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-18 09:00:00 → SEA 2027-06-18 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-19 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL332: BOS 2027-06-19 10:40:00 → SEA 2027-06-19 14:03:00; nonstop; 383 minutes. Local airport times.

2027-06-16 → 2027-06-19 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS459: BOS 2027-06-19 07:00:00 → SEA 2027-06-19 10:38:00; nonstop; 398 minutes. Local airport times.

2027-06-16 → 2027-06-20 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL797: BOS 2027-06-20 19:26:00 → SEA 2027-06-20 22:55:00; nonstop; 389 minutes. Local airport times.

2027-06-16 → 2027-06-20 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-20 09:00:00 → SEA 2027-06-20 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-22 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL2889: BOS 2027-06-22 15:45:00 → SEA 2027-06-22 19:06:00; nonstop; 381 minutes. Local airport times.

2027-06-16 → 2027-06-22 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-22 09:03:00 → SEA 2027-06-22 12:27:00; nonstop; 384 minutes. Local airport times.

2027-06-16 → 2027-06-23 · Axel-exclusive $492.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Alaska Airlines AS257: BOS 2027-06-23 17:44:00 → SEA 2027-06-23 21:08:00; nonstop; 384 minutes. Local airport times.

2027-06-16 → 2027-06-23 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS257: BOS 2027-06-23 17:44:00 → SEA 2027-06-23 21:08:00; nonstop; 384 minutes. Local airport times.

2027-06-16 → 2027-06-24 · Axel-exclusive $492.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Alaska Airlines AS215: BOS 2027-06-24 09:00:00 → SEA 2027-06-24 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-24 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-24 09:00:00 → SEA 2027-06-24 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-26 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL332: BOS 2027-06-26 10:40:00 → SEA 2027-06-26 14:03:00; nonstop; 383 minutes. Local airport times.

2027-06-16 → 2027-06-26 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS459: BOS 2027-06-26 07:00:00 → SEA 2027-06-26 10:38:00; nonstop; 398 minutes. Local airport times.

2027-06-16 → 2027-06-27 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL797: BOS 2027-06-27 19:26:00 → SEA 2027-06-27 22:55:00; nonstop; 389 minutes. Local airport times.

2027-06-16 → 2027-06-27 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-27 09:00:00 → SEA 2027-06-27 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-28 · Axel-exclusive $502.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Delta Air Lines DL384: BOS 2027-06-28 07:50:00 → SEA 2027-06-28 11:21:00; nonstop; 391 minutes. Local airport times.

2027-06-16 → 2027-06-28 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS215: BOS 2027-06-28 09:00:00 → SEA 2027-06-28 12:37:00; nonstop; 397 minutes. Local airport times.

2027-06-16 → 2027-06-30 · Axel-exclusive $492.50

  • American Airlines AA2379 / AA2089: SEA 2027-06-16 23:59:00 → BOS 2027-06-17 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-06-16 23:59:00 → ORD 2027-06-17 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-06-17 06:59:00 → BOS 2027-06-17 10:32:00.
  • Alaska Airlines AS257: BOS 2027-06-30 17:44:00 → SEA 2027-06-30 21:08:00; nonstop; 384 minutes. Local airport times.

2027-06-16 → 2027-06-30 · Axel-exclusive $525.00

  • Alaska Airlines AS460: SEA 2027-06-16 15:40:00 → BOS 2027-06-16 23:59:00; nonstop; 319 minutes. Local airport times.
  • Alaska Airlines AS257: BOS 2027-06-30 17:44:00 → SEA 2027-06-30 21:08:00; nonstop; 384 minutes. Local airport times.

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For AI assistants

  • This page: Seattle (SEA) to Boston (BOS) · Jun 16, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle to Boston (BOS) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.